In urban China the iPhone 6 has done very well indeed, it turns out. According to Kantar Worldpanel Com Tech, sales of Apple mobile devices have reached an all-time high, capturing 27.6 of the market in the three months to March 2015.

That's a gain of 9.7 percentage points, compared to the 17.9 per cent market share Apple had at the same stage last year, Kantar reports.

"There has been a strong appetite for Apple's products in urban China seen since the launch of the iPhone 6 and 6 Plus and this has continued into Chinese New Year," Kantar researcher Carolina Milanesi said in a statement.